Dr. Jeff Masters' WunderBlog

Bud the strongest Eastern Pacific hurricane so early in the year; 94L may develop
Posted by: Dr. Jeff Masters, 02:14 PM GMT del 25 Maggio 2012 +40
Category 2 Hurricane Bud is weakening, but still presents a formidable rainfall threat as it continues north-northeast towards an expected landfall between Manzanillo and Puerto Vallarta, Mexico late Friday night. Thursday night at 11 pm EDT, Bud peaked at Category 3 status, with 115 mph winds, becoming the earliest Category 3 hurricane on record in the Eastern Pacific. Recent Satellite loops show that Bud has weakened, though. The eye has disappeared, and the cloud pattern has shrunk and appears squashed, due to an increase in dry air, wind shear, and cooler sea surface temperatures affecting the storm. These hostile conditions should continue to weaken Bud to a Category 1 hurricane or strong tropical storm by the time of landfall. Bud is projected to cross the coast in a rugged, relatively unpopulated area, so wind and storm surge damage will probably be light to moderate. Heavy rain will cover a much wider area, and will be the main threat from Bud. The coast where Bud is headed towards is very mountainous, and numerous flash floods and dangerous mudslides will affect the region, probably including the cities of Manzanillo and Puerto Vallarta. I don't think Puerto Vallarta will see much in the way of wind or storm surge damage, since it is in a well-protected location and will probably be on the weak (left-front) side of the hurricane. Manzanillo is at higher risk, since it will probably be on the stronger right-front side of the hurricane.


Figure 1. True-color satellite image of Hurricane Bud taken at 12:25 pm EDT May 24, 2012. At the time, Bud was a Category 2 hurricane with 110 mph winds. Image credit: NASA.

A record May for the Eastern Pacific hurricane season
Bud is the strongest Eastern Pacific hurricane on record for so early in the year, and is tied with Hurricane Alma of 2002 (115 mph winds) as the second strongest May hurricane on record in the Eastern Pacific. Only Hurricane Adolph of 2001 (145 mph winds) was stronger. Also, Bud's appearance on May 21 marked the earliest date since record keeping began in 1949 for formation of the season's second named storm. The previous record was set in 1984, when the second named storm formed on May 29. Hurricanes are uncommon in the Eastern Pacific in May; there have been just twelve since record keeping began in 1949--an average of one May hurricane every five years. If Bud ends up making landfall in Mexico as a hurricane, it would be only the second Eastern Pacific May hurricane on record to hit Mexico. The other was Hurricane Agatha of May 24, 1971, which hit the same stretch of coast that Bud is threatening. Agatha made landfall as a Category 2 hurricane about 45 mi (75 km) from Zihuatanejo, Mexico. Ocean temperatures this year in the region where Aletta and Bud formed are only slightly above average, so the large-scale atmospheric patterns are probably more to blame for this year's exceptionally early start to hurricane season in the Eastern Pacific.


Figure 2. Morning satellite image of Invest 94L.

Invest 94L off the Georgia coast could develop this weekend
An area of disturbed weather (Invest 94L) a few hundred miles east of the Georgia coast is headed northeast at about 15 mph. The disturbance has not become more organized over the past day, due to very high wind shear of 40 - 55 knots. However, the latest SHIPS model forecast predicts that wind shear will drop to the moderate range, 10 - 20 knots, on Saturday and Sunday. Most of our reliable models predict that 94L could organize into a subtropical or tropical depression or storm on Saturday or Sunday off the coast of Georgia/South Carolina. NHC is giving 94L a 70% chance of developing into a tropical or subtropical depression by Sunday morning. A ridge of high pressure is expected to build in over the weekend off the East Coast, which will force 94L to the west back towards the coast, and heavy rains from 94L are likely to begin affecting coastal South Carolina, Georgia, and Northern Florida on Saturday and Sunday. There is a lot of dry, continental air on the west side of 94L, so the rainfall amounts from the storm will be limited unless until the center makes landfall. If these rains do materialize, they would be welcome, considering the moderate to severe drought conditions in the area.

I'll have an update Saturday.

Jeff Masters
Categories: Hurricane
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1351. washingtonian115 02:19 AM GMT del 26 Maggio 2012    
wunderkidcayman needs a cookie.
Member Since: Agosto 14, 2010 Posts: 5 Comments: 10655
1352. JrWeathermanFL 02:19 AM GMT del 26 Maggio 2012    
Quoting Ameister12:
Wunderkidcaymen, you still should take that down. Nobody likes them, including the admins.

I like them. :) I just would imagine them in my head.
Member Since: Luglio 19, 2011 Posts: 7 Comments: 1051
1353. CosmicEvents 02:19 AM GMT del 26 Maggio 2012    
It's a beautiful baby Beryl!!!
Congrats to all.
Member Since: Agosto 3, 2005 Posts: 10 Comments: 5099
1354. Bluestorm5 02:20 AM GMT del 26 Maggio 2012    
Well, I guess I got something to do in downtown other than shopping, eating, and partying at my cousin's graduation party. Glad I'm making the trip from Raleigh down to Charleston for a reason... filming the storm ;)
Member Since: Agosto 1, 2011 Posts: 7 Comments: 3618
1355. Tazmanian 02:20 AM GMT del 26 Maggio 2012    
94L went from nothing a few days a go too a TS
Member Since: Maggio 21, 2006 Posts: 5088 Comments: 111354
1356. NCHurricane2009 02:20 AM GMT del 26 Maggio 2012    
Quoting wunderkidcayman:

yep

yep


we are look at that coming from a tropical wave that is currently in the E-central caribbean


Preview from my upcoming blog post on this situation...I agree....

"P8...A pair of tropical waves are in the tropical belt of the Atlantic...one that has entered the Caribbean from the Lesser Antilles...the other following behind hundreds of miles to the east. Both waves are suppressed by dry air mentioned at the end of paragraph P7 above. Upper easterlies (aligned with low-level easterlies) on the south side of paragraph P7's upper ridging means favorable low shear. If the western of the two tropical waves overcomes the dry air and starts to develop T-storm activity in this low shear environment...this may lead to yet another area of interest. Absolutely no signs of that at this time."
Member Since: Settembre 15, 2009 Posts: 277 Comments: 3357
1357. Grothar 02:20 AM GMT del 26 Maggio 2012    
Quoting ProgressivePulse:
Why the "It may look likes"? Really not necessary.


Hey,PP .....It looks like it is moving West


Link
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1358. yqt1001 02:20 AM GMT del 26 Maggio 2012    
First IR image titled "02L.INVEST".

Member Since: novembre 19, 2010 Posts: 1 Comments: 1184
1359. GeorgiaStormz 02:20 AM GMT del 26 Maggio 2012    
Quoting hydrus:
NSSL WRF 4 km grid initialized 00 UTC May 25 2012

36 h Total Precipitation (mm)3-Hr Precip, Cloud, and Moisture Forecasts
North America 00 UTC cras45naP0372 hours..


Hey hydrus, look the gfs trough, i told you that thing would cycle back to the weaker run.
And it will stay there ;)
Member Since: Febbraio 11, 2012 Posts: 0 Comments: 7163
1360. wunderkidcayman 02:21 AM GMT del 26 Maggio 2012    
Quoting washingtonian115:
wunderkidcayman needs a cookie.

lol white chocolate please
Member Since: Giugno 13, 2009 Posts: 2 Comments: 5444
1361. KEEPEROFTHEGATE (Mod) 02:21 AM GMT del 26 Maggio 2012    
Quoting wunderkidcayman:

yep

yep


we are look at that coming from a tropical wave that is currently in the E-central caribbean
not till late wed early thursday to ring in the start of the 2012 season jun1st
Member Since: Luglio 15, 2006 Posts: 143 Comments: 40562
1362. allancalderini 02:22 AM GMT del 26 Maggio 2012    
I knew we would have Beryl tonight.If we can get Chris and Debby in June it will be a very incredible season.Beryl will probably peak at 65 to 75 mph.
Member Since: Ottobre 15, 2011 Posts: 0 Comments: 2024
1363. wunderkidcayman 02:23 AM GMT del 26 Maggio 2012    
Quoting NCHurricane2009:


Preview from my upcoming blog post on this situation...I agree....

"P8...A pair of tropical waves are in the tropical belt of the Atlantic...one that has entered the Caribbean from the Lesser Antilles...the other following behind hundreds of miles to the east. Both waves are suppressed by dry air mentioned at the end of paragraph P7 above. Upper easterlies (aligned with low-level easterlies) on the south side of paragraph P7's upper ridging means favorable low shear. If the western of the two tropical waves overcomes the dry air and starts to develop T-storm activity in this low shear environment...this may lead to yet another area of interest. Absolutely no signs of that at this time."


semd me link when you post it thanks
Member Since: Giugno 13, 2009 Posts: 2 Comments: 5444
1364. JrWeathermanFL 02:23 AM GMT del 26 Maggio 2012    
Quoting washingtonian115:
wunderkidcayman needs a cookie.

We only have one... How bout a muffin ;)
Member Since: Luglio 19, 2011 Posts: 7 Comments: 1051
1365. txjac 02:23 AM GMT del 26 Maggio 2012    
Quoting washingtonian115:
wunderkidcayman needs a cookie.


And a hug (this coming from a mom) ...we all love his enthusiasm!
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1366. mcluvincane 02:24 AM GMT del 26 Maggio 2012    
Quoting GeorgiaStormz:


And the 0% people who said, why are you talking about this, there is a reason it has 0%.

And the High Shear people who said the shear is only going to increase and 94L will be history.



Tampaspin comes to mind
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1367. CybrTeddy 02:24 AM GMT del 26 Maggio 2012    
Okay everyone, you know the drill.

F5..F5..F5..F5..Fresca..F5..F5..
Member Since: Luglio 8, 2005 Posts: 253 Comments: 20251
1368. eye 02:24 AM GMT del 26 Maggio 2012    
it looks like a "screaming eagle" like Dr. Lyons used to call similiar systems.
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1369. TropicalAnalystwx13 02:24 AM GMT del 26 Maggio 2012    
Aletta is born, Aletta dies, Alberto is born, Alberto dies, Bud is born, Bud dies, Beryl is born, _______.
Member Since: Luglio 6, 2010 Posts: 89 Comments: 25314
1370. wunderkidcayman 02:25 AM GMT del 26 Maggio 2012    
Quoting KEEPEROFTHEGATE:
not till late wed early thursday to ring in the start of the 2012 season jun1st

there is no real problem of having to ring earler
Member Since: Giugno 13, 2009 Posts: 2 Comments: 5444
1371. yqt1001 02:25 AM GMT del 26 Maggio 2012    
Quoting TropicalAnalystwx13:
Aletta is born, Aletta dies, Alberto is born, Alberto dies, Bud is born, Bud dies, Beryl is born, _______.


Hey that's my line. >:|
Member Since: novembre 19, 2010 Posts: 1 Comments: 1184
1372. wpb 02:26 AM GMT del 26 Maggio 2012    
anyone check the navy site?
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1373. wunderkidcayman 02:26 AM GMT del 26 Maggio 2012    
Quoting TropicalAnalystwx13:
Aletta is born, Aletta dies, Alberto is born, Alberto dies, Bud is born, Bud dies, Beryl is born, _______.

I have noticed that
Member Since: Giugno 13, 2009 Posts: 2 Comments: 5444
1374. Hurricanes101 02:26 AM GMT del 26 Maggio 2012    
Quoting JrWeathermanFL:

We only have one... How bout a muffin ;)


muffins are more expensive then cookies...they were cut from the budget after the 2009 season when the inactivity made people eat more
Member Since: Marzo 10, 2010 Posts: 1 Comments: 6902
1375. TropicalAnalystwx13 02:26 AM GMT del 26 Maggio 2012    
Quoting yqt1001:


Hey that's my line. >:|

You were being too slow so I posted it.
Member Since: Luglio 6, 2010 Posts: 89 Comments: 25314
1376. weathermanwannabe 02:27 AM GMT del 26 Maggio 2012    
Quoting wunderkidcayman:
how about if I put in bold that it is fake

now truly people would be idiots if they don't see it in bold though


A lot of regular folks come on here for storm information when h-season comes along and a fake advisory is the worst thing you can post on here.

Please refrain from that type of post.
Member Since: Agosto 8, 2006 Posts: 0 Comments: 6695
1377. cg2916 02:27 AM GMT del 26 Maggio 2012    
Quoting Hurricanes101:


muffins are more expensive then cookies...they were cut from the budget after the 2009 season when the inactivity made people eat more


Let me check for some cookies. *Looks in cupboard* Dang it, there's only crow in here... I'll have to save that for later. Sorry!
Member Since: Dicembre 21, 2007 Posts: 13 Comments: 2908
1378. washingtonian115 02:27 AM GMT del 26 Maggio 2012    
Quoting JrWeathermanFL:

We only have one... How bout a muffin ;)
Quoting txjac:


And a hug (this coming from a mom) ...we all love his enthusiasm!
Yes.He done a good job sticking with his guns.
Member Since: Agosto 14, 2010 Posts: 5 Comments: 10655
1379. naviguesser 02:27 AM GMT del 26 Maggio 2012    


Navy has it as 02L.Beryl:

http://www.nrlmry.navy.mil/TC.html

Link
Member Since: Settembre 15, 2006 Posts: 0 Comments: 66
1380. ProgressivePulse 02:28 AM GMT del 26 Maggio 2012    
Quoting Grothar:


Hey,PP .....It looks like it is moving West


Link


Absolutely, and no birds in the air for 15 1/2hrs.

I. ATLANTIC REQUIREMENTS
1. SUSPECT AREA
FLIGHT ONE -- TEAL 70
A. 26/1800Z
B. AFXXX 01XXA INVEST
D. 33.0N 77.0W
E. 26/1730Z TO 26/2130Z
F. SFC TO 10,000 FT
Member Since: Agosto 19, 2005 Posts: 5 Comments: 4326
1381. JrWeathermanFL 02:29 AM GMT del 26 Maggio 2012    
Quoting Hurricanes101:


muffins are more expensive then cookies...they were cut from the budget after the 2009 season when the inactivity made people eat more

Darn.....;)
Member Since: Luglio 19, 2011 Posts: 7 Comments: 1051
1382. Stormchaser2007 02:30 AM GMT del 26 Maggio 2012    
Too much going on...

...Devils Rangers game...

...Tornado on the ground in KS...

...Tropical Storm Beryl
Member Since: Giugno 9, 2007 Posts: 4 Comments: 15248
1383. GeorgiaStormz 02:31 AM GMT del 26 Maggio 2012    
Quoting Stormchaser2007:
Too much going on...

...

...Tornado on the ground in KS...

...


Look Out LaCrosse:


In a county with 1324 people, but they should be careful:
Member Since: Febbraio 11, 2012 Posts: 0 Comments: 7163
1384. KEEPEROFTHEGATE (Mod) 02:31 AM GMT del 26 Maggio 2012    
T.C.F.W.
02L/TS/B/CX
MARK
33.10N74.95W
Member Since: Luglio 15, 2006 Posts: 143 Comments: 40562
1385. KoritheMan 02:32 AM GMT del 26 Maggio 2012    
F5 F5 F5!

DUN DUN DUUUUN
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1386. galvestonhurricane 02:33 AM GMT del 26 Maggio 2012    
Quoting naviguesser:


Navy has it as 02L.Beryl:

http://www.nrlmry.navy.mil/TC.html

Link


So here I am, enjoying the hurricane "offseason," when along come Alberto and Beryl. Here we go again...
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1387. Ameister12 02:33 AM GMT del 26 Maggio 2012    
Meanwhile in the Plains, we got a tornado still on the ground in Kansas. This storm has been producing tornadoes for a while and the rotation has actually ramped up recently.
Member Since: Agosto 9, 2009 Posts: 9 Comments: 3518
1388. txjac 02:33 AM GMT del 26 Maggio 2012    
Quoting Stormchaser2007:
Too much going on...

...Devils Rangers game...

...Tornado on the ground in KS...

...Tropical Storm Beryl


I know what you mean ..where does the time/wine go??? Drank a whole bottle of my favorite wine watching 94L become Beryl!
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1389. weatherman566 02:34 AM GMT del 26 Maggio 2012    
Well, since it looks like we have Beryl...

Are we sure Dr. Jeff Masters isn't on vacation? =)
Member Since: Luglio 15, 2008 Posts: 0 Comments: 108
1390. NCHurricane2009 02:35 AM GMT del 26 Maggio 2012    
I like how the Atlantic hurricane season has been one-upping the E-pac...

Atlantic to E-pac: Haha....90L in February...91L and 92L in April....ya big lazy...

E-pac to Atlantic: How about I throw out two Invests side-by-side...90E and 91E....and oh yeah...90E becomes Aletta.

Atlantic to E-pac: Fine then...I throw in Alberto

E-pac to Atlantic: Fine....I throw in Bud...which is the strongest hurricane in my territory in May!

Atlantic to E-pac: Take a look at Beryl!!!!
Member Since: Settembre 15, 2009 Posts: 277 Comments: 3357
1391. galvestonhurricane 02:35 AM GMT del 26 Maggio 2012    
It's good to see the regulars are back for what could be a long hurricane season!
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1392. Grothar 02:35 AM GMT del 26 Maggio 2012    
Quoting Stormchaser2007:
Too much going on...

...Devils Rangers game...

...Tornado on the ground in KS...

...Tropical Storm Beryl


You forgot reruns of "Frasier"!
Member Since: Luglio 17, 2009 Posts: 56 Comments: 19542
1393. TropicalAnalystwx13 02:36 AM GMT del 26 Maggio 2012    
Wedge on the ground in KS,
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1394. SFLWeatherman 02:36 AM GMT del 26 Maggio 2012    
we have Tropical Storm Beryl! LinkIt is on the Navy site
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1395. keithneese 02:37 AM GMT del 26 Maggio 2012    
Quoting Grothar:


You forgot reruns of "Frasier"!


Which is what I find myself watching while waiting the first advisories...
Member Since: Febbraio 7, 2008 Posts: 64 Comments: 154
1396. Grothar 02:37 AM GMT del 26 Maggio 2012    
Quoting galvestonhurricane:
It's good to see the regulars are back for what could be a long hurricane season!


Most of us never leave. Just shows you how interest ing our lives are. How you doing Galveston?
Member Since: Luglio 17, 2009 Posts: 56 Comments: 19542
1397. ProgressivePulse 02:37 AM GMT del 26 Maggio 2012    
Quoting weatherman566:
Well, since it looks like we have Beryl...

Are we sure Dr. Jeff Masters isn't on vacation? =)


No, he's not, and that worries me.

No vacations for Jeff till November, got it Dr. Masters?
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1398. KoritheMan 02:37 AM GMT del 26 Maggio 2012    
Beryl!

000
WTPZ42 KNHC 260236
TCDEP2

TROPICAL STORM BUD DISCUSSION NUMBER 21
NWS NATIONAL HURRICANE CENTER MIAMI FL EP022012
800 PM PDT FRI MAY 25 2012

CONVENTIONAL SATELLITE IMAGERY SHOWS THAT BUD HAS BECOME VERY
DISORGANIZED...WITH NO CONVECTION OCCURRING AT THIS TIME.
HOWEVER...MICROWAVE IMAGERY SHOWS THAT A SMALL AND WELL-DEFINED
LOW-LEVEL CENTER STILL EXISTS JUST OFF THE WEST COAST OF MEXICO.
THE INITIAL INTENSITY IS REDUCED TO 50 KT...BASED MAINLY ON
EXTRAPOLATION FROM EARLIER AIRCRAFT DATA...AND THIS COULD BE
GENEROUS.

THE INITIAL MOTION IS 360/6. THERE IS NO SIGNIFICANT CHANGE IN THE
FORECAST PHILOSOPHY. BUD SHOULD CONTINUE ON A NORTHWARD TRACK
TONIGHT WITH A DECREASE IN FORWARD SPEED AS THE CYCLONE APPROACHES
THE COAST OF MEXICO. AFTER 12-24 H...THE CYCLONE OR ITS REMNANTS
ARE EXPECTED TO DRIFT SOUTHWARD OR SOUTHWESTWARD AWAY FROM THE
COAST AS HIGH PRESSURE BUILDS TO THE NORTH OF BUD. THIS MOTION
SHOULD CONTINUE UNTIL DISSIPATION.

A COMBINATION OF MODERATE SOUTHERLY VERTICAL WIND SHEAR...DRY AIR
ENTRAINMENT...AND INTERACTION WITH THE COAST OF MEXICO SHOULD CAUSE
BUD TO CONTINUE WEAKENING. THE NEW INTENSITY FORECAST CALLS FOR
THE SYSTEM TO BECOME A DEPRESSION BY 24 H AND A REMNANT LOW BY 48
H. IF THE CONVECTION DOES NOT RETURN...BUD COULD DISSIPATE FASTER
THAN CURRENTLY FORECAST.

DESPITE THE CURRENT LACK OF CONVECTION...THERE IS STILL THE
POTENTIAL FOR HEAVY RAINS AND DANGEROUS MUD SLIDES ACROSS PORTIONS
OF SOUTHWESTERN MEXICO IN THE STATES OF MICHOACAN...COLIMA...
JALISCO...AND SOUTHERN NAYARIT.

FORECAST POSITIONS AND MAX WINDS

INIT 26/0300Z 19.7N 105.6W 50 KT 60 MPH
12H 26/1200Z 20.3N 105.7W 40 KT 45 MPH
24H 27/0000Z 20.3N 105.8W 30 KT 35 MPH
36H 27/1200Z 20.2N 106.0W 25 KT 30 MPH
48H 28/0000Z 19.7N 106.2W 20 KT 25 MPH...POST-TROP/REMNT LOW
72H 29/0000Z...DISSIPATED

$$
FORECASTER BEVEN

Gotcha!
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1399. Ameister12 02:38 AM GMT del 26 Maggio 2012    
The rotation is making a turn right for La Crosse, KS!
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1400. evilpenguinshan 02:39 AM GMT del 26 Maggio 2012    
I know everyone is suuuuper excited about soon-to-be-Beryl, but we've got some fun in Kansas tonight.





both cells are tornado warned.
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1401. yqt1001 02:39 AM GMT del 26 Maggio 2012    
First IR image titled Beryl.

Member Since: novembre 19, 2010 Posts: 1 Comments: 1184

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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